534 Col. C. T. Bingham on South African 
to the genus. Mati and not to Dolichomutilla, Ashmead, 
as defined by André (Genera Insectorum. P. Wytsman. 
Hymenoptera), 
16. MUTILLA SECRETA, form n. 
N. E. Ruopesia: Loangwa River 1700 ft.: June 7, 
1905; and Petauke, Nov. 27, 1905 (S. A. Neave). 
@. Black shining with sparsely scattered erect white hairs, the 
abdomen more densely clothed with recumbent black hairs. Head 
subquadrate closely and coarsely punctured, as wide as the thorax in 
front; clypeus overhung with a dense fringe of white hairs ; 
mandibles acute, slightly reddish in the middle; eyes ovate, large, 
closer above to the occiput than below to the base of the mandibles ; 
head behind the eyes rounded and broad. Thorax rectangular, the 
sides nearly parallel, the pronotum slightly arched anteriorly, the 
median segment obliquely but steeply sloped posteriorly, the whole 
thorax above very closely and cvarsely punctured; seen from above 
the intervals between the punctures on the median segment have 
the appearance of an arched row of short spines, the sides of the 
thorax nearly smooth with one or two wide reticulations on the 
mesopleurae, the mesopleurae obliquely bicarinate; legs slender, 
intermediate and posterior tibiae with a double row of short black 
spines, the calcaria white. Abdomen sessile; basal segment short 
immaculate, ventral carina incised in the middle; 2nd segment 
with two transversely placed pubescent round white spots; 3rd and 
4th segments with broad pubescent white bands, that are widely 
interrupted in the middle on both segments; 6th segment fringed 
and overhung with white hairs, convex and smooth towards apex 
with no defined pygidial area, below with a single small median 
tubercle; 2nd and following ventral segments narrowly testaceous 
at their apices and sparsely fringed with white hairs. 
Length 2 10-11 mm. 
The specimen from the Loangwa River, June 7, 1905, 
is marked as the type. 
17. MUTILLA DURA, form n. 
RuHoDEsIA: Loangwa Valley, Petauké 1700 ft.: Dee. 25, 
1905 (S. A. Neave). 
@. In general appearance size and markings very closely resembles 
M. secreta, the form just described. It can be distinguished as 
follows. Antennae: 2nd joint of the flagellum three times, not twice 
